253798289 has 2 divisors, whose sum is σ = 253798290. Its totient is φ = 253798288.

The previous prime is 253798267. The next prime is 253798301. The reversal of 253798289 is 982897352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231283264 + 22515025 = 15208^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 253798289 - 2¹² = 253794193 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253798289.

It is not a weakly prime, because it can be changed into another prime (253798249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126899144 + 126899145.

It is an arithmetic number, because the mean of its divisors is an integer number (126899145).

Almost surely, 2^253798289 is an apocalyptic number.

It is an amenable number.

253798289 is a deficient number, since it is larger than the sum of its proper divisors (1).

253798289 is an equidigital number, since it uses as much as digits as its factorization.

253798289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The square root of 253798289 is about 15931.0479567416. The cubic root of 253798289 is about 633.1348655750.

The spelling of 253798289 in words is "two hundred fifty-three million, seven hundred ninety-eight thousand, two hundred eighty-nine".